The Freshwater Stingray

One of my favorite aquarium fish is thestates:
freshwater stingray, particularly the ones of theArizona
genus Potamotrygon. This fish is not for theArkansas
beginning hobbyist but if you have someCalifornia
experience this is a fascinating animal. There areFlorida
many species of stingrays in the wild but you willGeorgia
find just a few species for sale in any local fishHawaii
store. You can get a wider choice of speciesNevada
from specialized breeders online but they are soldOklahoma
by their common names. Because of this, I willTexas
not use the scientific names in this article.Utah
Stingrays are very sensitive to water parameters.This is a general guide to classify Stingrays:
They have relatively large kidneys and theyLarge-Eyed
produce a lot of ammonia, so make sure youBlack Rays
have adequate filtration. The type of aquariumTiger Ray
you keep them in very important since they stayMotoro Ray
at the bottom nearly all the time, a tank with aMantilla Ray
large bottom area is the best, instead of a tallerOtorongo Ray
more narrow tank. Rays get quite large so a tankChocolate Ray
for an adult specimen must be at least 4 feet byThere are a number of Rays being sold as
2 feet, the height can be 2 feet. They are from"Teacup" rays while this should be used to
tropical locations and should have a temperaturedetermine the size of the ray.
of around 75° to 80° F. The PH mustSmall-Eyed Rays
be maintained at a range between 6.5 to 6.75 andChina Ray
keep the TDS (Total Dissolved Solids) below 200.Antenna Ray
When buying a new Stingray, stay away fromColy Ray
the specimens that have a "curled" disc,this isCeja Ray
called the "death curl" since any stingray showingManzana Ray
it will surely die soon. A healthy ray always keepsBe wary when considering good tank-mates for
the disc margin flat to the substrate, exceptthese fish. Stingrays are usually not aggressive
when actively moving about the tank. Sometowards bigger fish but don't mix them with
people speculate that this is due to kidney failuresomething they can eat since I have lost a few
from over exposing the animal to high levels oftetras, shrimp and even some cory catfishes. In
ammonia (like when in transit). Other possible signsthe other hand I have had plecos that attach
of sickness are:themselves to the rays, mostly annoying them
- a cloudy or milky film covering the bodybut in some cases injuring them.
- rapid breathing or panting while at restFeeding is probably the hardest part of ray
- open soreskeeping. When you first buy them is sometimes
- showing the pelvic bones, rays in good healthhard to get them to start eating and here is
should not show this bones.when I have lost most of my rays. I have found
Make sure its legal to keep Stingrays in yourthat they like squid, earth worms (still wriggling)
state, some require special permits and someand raw red meat. Feed them at least twice per
times they are restricted to educational orday.
research facilities. Here is a list of the restricted